Ext.Net TreePanel 修改Icon图标


1、默认icon

          Ext.Net TreePanel 修改Icon图标_第1张图片

2、自定义icon

          Ext.Net TreePanel 修改Icon图标_第2张图片

完整的代码,文件WebForm2.aspx中代码

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="ext_SMS.WebForm2" %>
<%@ Import Namespace="System.Collections.Generic" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">
  <title>改变TreePanel Icon图标</title>
  style type="text/css">   //自定义样式
   .add {
    background-image: url(image/query.jpg) !important;
   }
  </style>
</head>
<body>
    <form id="Form2" runat="server">
        <ext:ResourceManager ID="ResourceManager1" runat="server" />
        
        <ext:Viewport ID="Viewport1" runat="server">
            <Items>
                <ext:BorderLayout ID="BorderLayout1" runat="server">
                    <West>
                         <ext:TreePanel 
                            ID="TreePanel1" 
                            runat="server" 
                            Title="Tree" 
                            Width="200"
                            AutoHeight="true" 
                            Border="false">
                                <Root>
                                <ext:AsyncTreeNode Text="系统功能模块" NodeID="root" Expanded="true"   Icon="ApplicationHome">
                                </ext:AsyncTreeNode>
                                </Root>
                                <Loader>
                                    <ext:PageTreeLoader RequestMethod="POST" OnNodeLoad="GetReportList" PreloadChildren="true">
                                        <EventMask ShowMask="true" Target="Parent" Msg="Loading..." />
                                    </ext:PageTreeLoader>
                                </Loader>
                                <Listeners>
                                    <Click Handler="if(node.isLeaf()){e.stopEvent();loadExample(node);}" />
                                </Listeners>                     
                        </ext:TreePanel>                        
                    </West>                   
                    <Center>
                       <ext:TabPanel ID="Pages" runat="server" EnableTabScroll="true" />
                    </Center>
                </ext:BorderLayout>
            </Items>
        </ext:Viewport>  
    </form>
</body>
</html>


 

 后台文件WebForm2.aspx.cs中代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Ext.Net;
using System.Data;

namespace ext_SMS
{
    public partial class WebForm2 : System.Web.UI.Page
    {

        protected void Page_Load(object sender, EventArgs e)
        {
        }

        protected void GetReportList(object sender, NodeLoadEventArgs e)
        {
            string prefix = e.ExtraParams["prefix"] ?? "";
            if (!string.IsNullOrEmpty(e.NodeID))
            {
                for (int i = 1; i < 6; i++)
                {
                    AsyncTreeNode asyncNode = new AsyncTreeNode();
                    asyncNode.Text = prefix + e.NodeID + i;
                    asyncNode.NodeID = e.NodeID + i;
                    e.Nodes.Add(asyncNode);
                }
                for (int i = 6; i < 11; i++)
                {
                    Ext.Net.TreeNode treeNode = new Ext.Net.TreeNode();
                    treeNode.Text = prefix + e.NodeID + i;
                    treeNode.NodeID = e.NodeID + i;
                    treeNode.Leaf = true;
                    // treeNode.Icon = Icon.Accept;         //注意此处设置不起作用
                     treeNode.IconCls = "add";     //设置自定义样式
                    e.Nodes.Add(treeNode);
                }
            }
        }
    }    
}

注意:图片位于image文件夹下,名称query.jpg 


3、需要默认样式时,不设置自定义样式即可。

      去掉这句:treeNode.IconCls = "add"; //设置自定义样式

 

 

.

 

你可能感兴趣的:(server,object,XHTML,ext,assembly,webform)